One of the best movies of the 1980's, and later went on to spawn an immensely popular cartoon series (some claimed it equal in popularity to the later Teenage Mutant Ninja Turtles in the early 90's), and later an equally entertaining sequel. Then, in the mid-90's, a spin-off cartoon series was released in hopes of reviving the franchise (entitled "Extreme Ghostbusters"), but was nowhere near as good as the original.

Group of special agents who specialize in the capture and apprehension of ghosts, demons, cretins, evil spirits, etc. Ghostbusters should be called whenever paranormal activities are suspected, including when there is something strange in the neighborhood or an invisible man sleeping in your bed.

Private paranormal investigation and elimination company founded in New York City in 1984, by discredited former Columbia scientists Dr’s Peter Venkman, Raymond Stantz and Egon Spengler. Ghostbusters employees typically charged between 4000 and 5000 dollars per ghost removed, which meant the service was a slight premium.
The Ghostbuster’s ghost elimination policies came in for much debate criticism, some speculated whether they were the source of the sudden unexplained increases in spectral activity in the tri-state area. Others including the EPA, were concerned about their use of unliscened nuclear accelerators in their work and the waste chemicals in their basement. This came to a head with the EPA shutting down their ghost storage facility which had the equivalent effect of dropping a bomb on the city. The Ghostbusters (now including Winston Zeddemore) were arrested and eventually cleared of all charges and proceeded to stop an invading god-like being called Gozer The Gozarian which took the form of a hundred foot marshmallow gay sailor on shore leave. By crossing their nuclear accelerator streams they managed to destroy the marshmellow sailor, create a marshmallow rain storm and blow the top 15 floors off of 55 Central Park West.
Despite saving the world once more Ghostbusters Inc shut down for good in 1991 amidst huge debts and lack of business.

Are You trounled by strange noises in the middle of the night? Do you experience feelings of dread in your basement or attic? Have you or your family actually seen a spook spectre or ghost? If the answer is yes then don’t wait another minute. Just pick up the phone and call the professionals. Ghostbusters. Our courteous and efficient staff are on call 24hrs a day to serve all your supernatural elimination needs. We’re Ready To Believe You.
-Actual dialogue from Ghostbusters TV commercial circa 1984.

Paranormal investigator from the organization known as “Ghostbusters.” Created in New York City in the early 1980’s due to the overpopulation of residual spirits and negative emotional energies. During the initial time of recruitment, almost anyone could be employed as a Ghostbuster. However, a new wave of entrance exams and screenings allowed for only the most serious and dedicated person to be employed with this United States Government-funded organization. A Ghostbuster holds an awkward ranking in society, which rivals that of the police force and has been known to work on an international level. Many Ghostbusters were killed during a subterfuge war with North Korean witches during the early 21st century. Only a very small number of Ghostbuster employees are still in existence, and are mostly used for the security of Ambassadors from middle-eastern countries and special policing operations.

"The corrupt polcies you mentioned remind me of the Ghostbuster-policing decade."

A ghost buster is when a guy is getting a ghost job from his girlfriend, wife, mistress w.e. (see Ghostjob) After receiving this Geejacobra, you must yell "YOUVE BEEN GHOST BUSTED!"
To prove that you have accomplished this feat and truly are a Ghost Buster, picture evidence is needed.

Bart: Dude im a Ghost buster! pulled one last night.
Matthew: Bullshit! let me see some picture evidence
Bart: I dont have any
Matthew: You aint no buster! All you are is a fucking Danny phantom, you wannabe.
Bart: Damnit! you called my Bluff..